Third International Workshop on Digital and Computational Video, 2002. DCV 2002. Proceedings., 2002
Time-interleaved ADCs (TIADCs) are among the fastest architectures adopted when speed is the bott... more Time-interleaved ADCs (TIADCs) are among the fastest architectures adopted when speed is the bottleneck of the system. Real-time medical imaging and networked video are few examples of many applications using such fast ADCs. The spurious-free dynamic range (SFDR) is an important parameter of high-speed TIADCs. We propose a new time-interleaved ADC architecture that reduces the spurious components and allow us
Proceedings of the 2003 International Symposium on Circuits and Systems, 2003. ISCAS '03., 2003
... For a IO-hit SOOMS/sec ADC, the SFDR achieved using the proposed randomizing method can be as... more ... For a IO-hit SOOMS/sec ADC, the SFDR achieved using the proposed randomizing method can be as wide as -79 dBc ... 1 and M/4, thc generated number will hc compared to the output of a modulo Mi4 counter, in case of ... The simulation was carried out using Matlab and Simulink. ...
2009 16th IEEE International Conference on Electronics, Circuits and Systems - (ICECS 2009), 2009
Abstract This paper presents charge sampling circuit using new high linearity transconductor (Gm... more Abstract This paper presents charge sampling circuit using new high linearity transconductor (Gm) cell that has third order distortion cancellation. The proposed Gm-cell has almost constant transconductance value over ±200mV input voltage range. The charge sampling circuit ...
2008 51st Midwest Symposium on Circuits and Systems, 2008
Page 1. A UHF Continuous-Time Current-Mode Band-Pass Delta Sigma Modulator Based on Active Induct... more Page 1. A UHF Continuous-Time Current-Mode Band-Pass Delta Sigma Modulator Based on Active Inductor Qiuning Chen, Kamal El-Sankary and Ezz El-Masry Dept. of Elec. and Comp. Eng., Dalhousie University, Halifax, NS, Canada, B3J 2X4 Email: qiuningchen@dal.ca ...
Proceedings of 2010 IEEE International Symposium on Circuits and Systems, 2010
AbstractThis paper presents a high efficient multi-stages full-wave RF to DC rectifier for RFID ... more AbstractThis paper presents a high efficient multi-stages full-wave RF to DC rectifier for RFID applications. The proposed converter employs diode-connected transistors with gate to drain bootstrapping capacitor to overcome threshold drop of voltage. Rectifying transistors are ...
2007 IEEE International Symposium on Circuits and Systems, 2007
This paper presents an efficient low power protection technique for thin gate oxide of DMOS trans... more This paper presents an efficient low power protection technique for thin gate oxide of DMOS transistors. By connecting a capacitive divider structure to the floating gate node of a DMOS transistor, its effective gate oxide thickness is increased, and a protection from breakdown due to high voltages (HV) applied to its gate is achieved. Several HV circuits, including: positive voltage doubler and level-up shifter suitable for ultrasound sensing systems are built successfully around this technique. These circuits were implemented with the 0.8 mum CMOS/DMOS HV DALSA process. Experimental results prove the good functionality of the designed HV circuits using the proposed protection technique for voltages up to 120V.
2009 IEEE International Symposium on Circuits and Systems, 2009
I. INTRODUCTION Bandgap references are used in analog circuits like A/D and D/A converters extens... more I. INTRODUCTION Bandgap references are used in analog circuits like A/D and D/A converters extensively. The output of the bandgap reference (BGR) shows little dependence on supply, process variations and temperature [1]. Analog circuits with low supply voltages are in ...
Third International Workshop on Digital and Computational Video, 2002. DCV 2002. Proceedings., 2002
Time-interleaved ADCs (TIADCs) are among the fastest architectures adopted when speed is the bott... more Time-interleaved ADCs (TIADCs) are among the fastest architectures adopted when speed is the bottleneck of the system. Real-time medical imaging and networked video are few examples of many applications using such fast ADCs. The spurious-free dynamic range (SFDR) is an important parameter of high-speed TIADCs. We propose a new time-interleaved ADC architecture that reduces the spurious components and allow us
Proceedings of the 2003 International Symposium on Circuits and Systems, 2003. ISCAS '03., 2003
... For a IO-hit SOOMS/sec ADC, the SFDR achieved using the proposed randomizing method can be as... more ... For a IO-hit SOOMS/sec ADC, the SFDR achieved using the proposed randomizing method can be as wide as -79 dBc ... 1 and M/4, thc generated number will hc compared to the output of a modulo Mi4 counter, in case of ... The simulation was carried out using Matlab and Simulink. ...
2009 16th IEEE International Conference on Electronics, Circuits and Systems - (ICECS 2009), 2009
Abstract This paper presents charge sampling circuit using new high linearity transconductor (Gm... more Abstract This paper presents charge sampling circuit using new high linearity transconductor (Gm) cell that has third order distortion cancellation. The proposed Gm-cell has almost constant transconductance value over ±200mV input voltage range. The charge sampling circuit ...
2008 51st Midwest Symposium on Circuits and Systems, 2008
Page 1. A UHF Continuous-Time Current-Mode Band-Pass Delta Sigma Modulator Based on Active Induct... more Page 1. A UHF Continuous-Time Current-Mode Band-Pass Delta Sigma Modulator Based on Active Inductor Qiuning Chen, Kamal El-Sankary and Ezz El-Masry Dept. of Elec. and Comp. Eng., Dalhousie University, Halifax, NS, Canada, B3J 2X4 Email: qiuningchen@dal.ca ...
Proceedings of 2010 IEEE International Symposium on Circuits and Systems, 2010
AbstractThis paper presents a high efficient multi-stages full-wave RF to DC rectifier for RFID ... more AbstractThis paper presents a high efficient multi-stages full-wave RF to DC rectifier for RFID applications. The proposed converter employs diode-connected transistors with gate to drain bootstrapping capacitor to overcome threshold drop of voltage. Rectifying transistors are ...
2007 IEEE International Symposium on Circuits and Systems, 2007
This paper presents an efficient low power protection technique for thin gate oxide of DMOS trans... more This paper presents an efficient low power protection technique for thin gate oxide of DMOS transistors. By connecting a capacitive divider structure to the floating gate node of a DMOS transistor, its effective gate oxide thickness is increased, and a protection from breakdown due to high voltages (HV) applied to its gate is achieved. Several HV circuits, including: positive voltage doubler and level-up shifter suitable for ultrasound sensing systems are built successfully around this technique. These circuits were implemented with the 0.8 mum CMOS/DMOS HV DALSA process. Experimental results prove the good functionality of the designed HV circuits using the proposed protection technique for voltages up to 120V.
2009 IEEE International Symposium on Circuits and Systems, 2009
I. INTRODUCTION Bandgap references are used in analog circuits like A/D and D/A converters extens... more I. INTRODUCTION Bandgap references are used in analog circuits like A/D and D/A converters extensively. The output of the bandgap reference (BGR) shows little dependence on supply, process variations and temperature [1]. Analog circuits with low supply voltages are in ...
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Papers by Kamal El-Sankary